30005012312 has 32 divisors (see below), whose sum is σ = 62801196480. Its totient is φ = 13321462560.

The previous prime is 30005012281. The next prime is 30005012339. The reversal of 30005012312 is 21321050003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3960938 + ... + 3968505.

It is an arithmetic number, because the mean of its divisors is an integer number (1962537390).

Almost surely, 2^30005012312 is an apocalyptic number.

It is an amenable number.

30005012312 is an abundant number, since it is smaller than the sum of its proper divisors (32796184168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30005012312 is a wasteful number, since it uses less digits than its factorization.

30005012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929503 (or 7929499 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 30005012312 its reverse (21321050003), we get a palindrome (51326062315).

The spelling of 30005012312 in words is "thirty billion, five million, twelve thousand, three hundred twelve".